Metal-forming machine.



C. P. KEMBLE.

METAL FoRMlNG MACHINE.'

APPLICATION FILED OCT. I, I9I5.

1,201,740, I, Patented 0011.111916. l

2 SHEETS-SHEET l.

II v f@ I Ix J mmllmmm A UNITED s'rA,

PATENT FFICE CHARLES?. KEMBLL, OF CHICAGO, ILLINOIS, A'ss'IGNoP. To THE KENNICCTI COMPANY,

' OF CHICAGO, ILLINoIs, A CORPORATION or ILLINOIS.

-METAL-FORMING MACHINE.

Specication'of Letters Patent. Patented Oct. 17, 1916,

Application led October 1, 1915. Serial No. 53,566.

Y .of which the following is a specification. Y

` as. will later appear.

My invention relates to improvements in ymetal-forming machines, and more particularly to .a type of machine for rolling a concentric series of corrugations in metal-plates.

The nature and objects of myinvention will be more fully understood from the following detailed description, taken in connection with the accompanying drawings.

In these drawings, Figure 1 is; a vertical sectional view through a machine constructed in accordance with my invention,.taken substantially on the line 1 of Fig. 2,.and Fig. 2 visa plan view of the revolving platen or table, the upper stationary platen being removed.

Referring more particularly tothe drawings,.the numeral 10 ,designates the base or frame of my machine which, as shown in the drawings, is generally rectangular inl form .and provided on one side with an aperture 11 through which the driveshaft passes Supported above the base 10 on columns 12 is an upper stationary platen 13 having in its lower face three concentric grooves 14, 15 and 16. For cooperating with thisgrooved stationary platen there isprovided a rotatable table or platen formed of two concentric members, an outer annulus'17 and an inner disk 18. The annulus 17 is provided with ball-'races 19, 20, which lie opposite the grooves 14, 15, of the platen 13, while the inner diskV 18 is vprovided with a ball-race 21 which lies opposite the groove 16. Within the race-ways A19, 20 and 21, there are mounted forming balls 22 which are preferably spaced apart as by spacers 23.

For supporting the annulus 17 and disk 18 and for driving the same, there is provided a rotatable table 2 4 vsupported upon ythe base 10 as by a ball-thrust4 bearing 25 and has gear-teeth 26 cut in its periphery which mesh with a driving-pinion 27 carried by a driving-shaft 28 which passes outward through the aperture 11 in the frame and is operated from any desired source of power. Upon the rotatable table 24 there are mounted five fluidpressure cylinders arranged in twosets. The outer set of cylinders, designated .29, are four in number and receive four plungers 30 which support the `annulus 17. The second set comprisesa single cylinder 31 mounted concentrically with the table 24 and receiving a plunger 32 which supports the disk 1S. -For` supplying the pressure Huid to the cylinders 29, conduits 33 are formed in the. table 24, the said conduits extending downwardly `into a hu'bgor spindle 34 formed integrally with or secured to the table 24. All of the conduitsy 33vcommunicate with an annular conduit 35 near the lower end of the stem 34 and through the latter conduitthe pressurel Huid is supplied by a pipej36 which enters a packed collar 37 having an annular groove38 which forms constant connection with the annular conduit 35 throughports 'opening outward from the latter.' The cylinder 31 -is supplied with fluid under pressure by a conduit 40 arranged axially of the Vstem 34 and kcommunicating with an'aXial supply pipe 41 secured in thevr end of the y conduit by a suitable packing gland.

Surrounding the annulus 17 is a rectangular clamping platen 42 which is supported upon the base 10 by four plungers'43 arranged at lts corners and operating in iiuidpressure cylinders 44 which are connected with a source of fluid under pipes 441. Y n

Inthe operation of my machine the plunpressure by gers 30, 32 and 42will be brought to their i lower or inoperative position by cutting olf the supply of fluid under pressure from the respective cylinders and venting these cylinders. The plate to be corrugated, for eX- vample, a plate-metal car end, will be pushed in from the rside to rest upon the upper surface of the clamping table`42, which is designed to stand at a somewhat higherlevel than the forming members 17, ,18.* The fluid pressure will then be admittedto the cylinders 44, thereby elevating the clamp-table 42 to bringl the flat plate into contact with the `lower face of the stationary platen 13. The drive-shaft 28 may then be started to rotate the table 24 and with it the annulus 17 and central disk 18. By admitting pressure either through the pipe 36 or the pipe 41, or through both of these, depending upon the gage of metal being pressed, and the v vated, whereby the forming balls 22. will power of thedrving means,;the plungers or32 vor both of these members will be elecome'Y in VContact with andV will roll upon the lower surface of the"plate. Sufficientpressure being exerted by the pressure cylinders 29, 31, the balls as theyrrevolve will work the metal of the plate inwardly byA a sort of spinningy or rolling action yforming concentric corrugations as shownoat in Fig. I of the drawings. When these corrugations have- 'reached their full depth", the drive- `shaft 28 may be stopped and by venting'the pressure cylinders 29,81, the forming balls will be withdrawn free of the lower Isurface of the'plate.` The cylinders/a4 inay'thei'r be vented to lower the clamping table' 42 and when the corrugations of the plate a have be'- conie free of the grooves inthe platen 13,

't-he, plate may be removed by acrane or other apparatus.

tion, asjbr'oadly' i l/Vhilge 1I have shown and' describedk in considerable d etail one specific. embodiment: of

my invention, itshould be understood that 25 suchv o showing and description is illustrative only and "for the purpose of makingmyin- 'vention' more clear, and".v that my invention isnot to be regarded as limited to these spe'- ciicdetails, except'so faras such-limitajtions are included within the terms of the -groovein its operative face,`a secondf platen spaced away from the saidx face` and having ballv race opposed thereto fand arranged lconcentrically with the said groove,'a for-nii'ng-ball'movable in the said race, means-'for moving said platens toward one another, 4and *means for moving said platens angularly with 'relation Vto one anotlierand' about an aiisv concentric with: said groove and race;

2r In ametal-forming. machine and, in coifnbinationgfA af platen having a I circul'ar fgroove in it'soperative faceg'afsecond platen spaced awayifroin the' saidv f'ace and yfliaving af'circular balli-race concentricfwith aiidfop- .posed'toythe-said groove," spaced: forming balls 'movablej Vin -the said race', .means for ymovinglsaid*platens'towardone another, and

inea-nsd fork 'rotating said platens'with Lrespect to one another, about an axis concentric with the said groove and race.

In a metal-forming machine, aplaten havinfa )luralit f' of concentric Grooves in i D b its Aoperative face, a' second platen spaced away from the said face and having a plurality of concentric ball-races opposed to the n said groove, a forming ball movable in each of the said races, means for moving said platens toward one another, and means for Yrotating said platens relatively to one another and. about an Vanis concentric with the said grooves and races.

4. In a metal-forming' machine, a stationary platen having an arcuate groove in its operative face', an annular clamping platen opposed to the said face and* movable toward andfaway from Ithe same to clamp a plate thereagainst, a' formingplaten spaced away fromthe'fsaid face andl having a ball-race op- A posed tothe said groove, aforming ball `movable in thesaid race, means forfmoving saidtforming platen toward 'and awayl'froiii said stationary platen, and meansl for rotating saidy forming platen about an'aXis coni .cent-ric with' said groove andi race.`

5. In a 'metal forming machine, a platen having ayrplurality of concentric` arcuate grooves in; `its operative face, 'a'l plurality of concentric platens kspaced away from the said face' and` hiwingrv ball-races opposed to the said grooves, forming-ballsmovable in the saidr races, independent means formoving eachV of said conceiitiicplat'ens toward saidfirstinarnedplaten, and means for moving; said: concentric platens and saidirstnamedl platenangularly with relation to one another and about anaXis concentric with said'grooves and traces. l o

6. In a metal-forming machine, a stationgrooves in its operative face, means for clamping a. plate against: the said "face, a

`second platen comprising a plurality ofv concentric members spaced away from the 'said face'and havingea'ch aYball-race opposed to oneof tliesaid grooves," forming balls movable in the'sai'd races; independent means 'for nio-ving! each' =of said coiic'entric platens Atowardsaidfstationaryj platen, and means for rotating'sai'd vct'mcentrie` platens about an 'axis concentricv with said' grooves and' races.

In presence`of`-' A C. FISCHER,

T. M. MsoN. i"

aryplatenhavingi a pluralityof concentric 

